| Takahiro Yokomichi | |
| Native Name Lang: | ja |
| Office: | Speaker of the House of Representatives |
| Term Start: | 16 September 2009 |
| Term End: | 16 November 2012 |
| Primeminister: | |
| Deputy: | Seishirō Etō |
| Predecessor: | Yōhei Kōno |
| Successor: | Bunmei Ibuki |
| Office1: | Vice Speaker of the House of Representatives |
| Term Start1: | 21 September 2005 |
| Term End1: | 21 July 2009 |
| 1Blankname1: | Speaker |
| 1Namedata1: | Yōhei Kōno |
| Predecessor1: | Kansei Nakano |
| Successor1: | Seishirō Etō |
| Office2: | Governor of Hokkaido |
| Term Start2: | 23 April 1983 |
| Term End2: | 22 April 1995 |
| Predecessor2: | Naohiro Dōgakinai |
| Successor2: | Tatsuya Hori |
| Office3: | Member of the House of Representatives from Hokkaido |
| Term Start3: | 7 November 1996 |
| Term End3: | 28 September 2017 |
| Successor3: | Daiki Michishita |
| Constituency3: |
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| Term Start4: | 27 December 1969 |
| Term End4: | 23 April 1983 |
| Constituency4: | Hokkaido-1st |
| Birth Date: | 3 January 1941 |
| Birth Place: | Sapporo, Japan |
| Party: |
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| Alma Mater: | University of Tokyo |
[1] was a Japanese politician who belonged to the Democratic Party of Japan (DPJ) and was a member of the House of Representatives in the Diet (national legislature). A native of Sapporo, Hokkaidō, and graduate of the University of Tokyo, he was elected to the first of his five terms in the House of Representatives in 1969 as a member of the Japan Socialist Party in the electoral district of his late father Setsuo. He left the House of Representatives and was elected to be the governor of Hokkaidō. He served for three terms from 1983 to 1995. After finishing his term as governor, he left the Socialist Party, joining the DPJ. In 1996 he was re-elected to the House of Representatives. He is the leader of the most left-leaning faction in the DPJ. After the victory of 2009 elections, then-DPJ President Yukio Hatoyama named him as the next house speaker.
In the 2012 general election Yokomichi lost his single-seat electorate but retained a seat in the Diet through the proportional representation system.[2] He managed to regain his seat in the 2014 election and held it until he retired in 2017.